Riv_rel – distant relationships! by rivforthesesh at Mod The Sims

Main commands:
riv_help = lists all commands
riv_rel sim_x sim_y = finds biological relationships
riv_get_parents sim_x = lists parents
riv_get_sib_strength sim_x sim_y = tells you if two sims are full/half/not siblings (if it is unclear due to parents not existing, it’ll assume they are full siblings)

Extra commands:
riv_get_direct_rel sim_x sim_y = finds direct relationships only
riv_get_indirect_rel sim_x sim_y = finds indirect relationships only
riv_show_relbits sim_x sim_y = lists all relationship bits (not nicely formatted)
riv_get_ancestors sim_x = lists all ancestors (not nicely formatted)